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Revision 1245 - (hide annotations) (download)
Tue Jun 19 15:54:13 2007 UTC (16 years, 9 months ago) by schoenebeck
File size: 13699 byte(s)
* filename arguments in LSCP commands now allow to use escape
  sequences, that is directly literal as one of: \', \", \\, \n, \r,
  \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
  code value like \xf2) (fixes bug #24)
* parser now supports extended ASCII character set
  (up to ASCII code 255, i.e. includes now umlauts and accents)
* LSCP parser C++ files are now automatically regenerated when
  yacc input source file (lscp.y) was modified

1 schoenebeck 947 Version CVS HEAD (?)
2    
3 schoenebeck 1065 * packaging changes:
4 schoenebeck 1212 - config.h is not going to be installed along with liblinuxsampler's
5     API header files anymore
6 schoenebeck 1065 - only the API relevant header (and source) files will be exported to
7     the Doxygen API documentation (explicitly listed in Doxyfile.in)
8 schoenebeck 1175 - added completely new XCode project files for Mac OSX which is now
9     capable to execute our autoconf environment, thus no need anymore
10     to maintain the compile time configuration file (osx/version.h) for
11     OSX manually (patch by Toshi Nagata)
12 schoenebeck 1065
13 schoenebeck 947 * general changes:
14     - replaced the old, confusing MIDI program change mechanism by a
15     flexible MIDI instrument mapper which allows to map arbitrary
16 schoenebeck 973 (MIDI bank, MIDI program) pairs with arbitrary
17 schoenebeck 947 (engine type, instrument file, file index) triplets which will be
18     loaded on the respective channel when such MIDI program change
19     messages arrive, beside that, each entry allows to define a life-time
20     strategy for the instrument, so the user can define whether the
21     instrument should i.e. be permanently loaded (to be able to switch
22     quickly among sounds) or i.e. loaded just on demand when the
23     respective program change arrives (to safe RAM space), as well as a
24     global volume factor for each entry, so the user can adjust the volume
25     dynamic of his mapped instrument collection without having to modify
26 schoenebeck 973 the instrument files, also one can manage arbitrary amount of such
27     MIDI instrument maps and assign each sampler channel individually
28     a certain map, so that i.e. separation of normal instruments and
29     drumkits is possible
30 iliev 1108 - new notification events for tracking changes to audio/MIDI devices,
31     MIDI instrument maps, MIDI instruments, FX sends, global volume.
32 schoenebeck 990 - sampler was limited to load max. 200 instruments in the background
33     due to a constant size RingBuffer FIFO which is now replaced by a
34     dynamic (unlimited) size std::list FIFO
35 schoenebeck 1001 - added FX sends, these allow to route audio signals to arbitrary audio
36     output channels for being processed by external effect processors
37     (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
38     controllers
39 schoenebeck 1005 - global (sampler wide) volume can now be controlled at runtime
40 iliev 1130 - Implemented new, improved notification system
41 schoenebeck 1149 - fixed compilation errors regarding OSX
42     (patch by Toshi Nagata)
43 iliev 1161 - implemented instruments database
44 schoenebeck 1212 - added highly experimental support for on-the-fly instrument editing
45     within the sampler's process (by using instrument editor plugins),
46     you'll notice the new "Registered instrument editors:" message on
47     startup, added a new LSCP command "EDIT INSTRUMENT <sampler-channel>"
48     to spawn a matching instrument editor for the instrument on the
49     given sampler channel, the plugin path can be overridden at compile
50     time with ./configure --enable-plugin-dir=/some/dir
51 schoenebeck 1221 - fixed several issues in fundamental "Thread" class: set scheduling
52     policy and priority on thread level, set a minimum stack size for
53     thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
54     threads simply inherited properties of starting thread instead of
55     setting their own policy and priority
56 schoenebeck 1233 - minor fix in our automatic stack trace mechanism on crashes, the
57     main process did not wait for the stack trace process to finish
58     its output
59 schoenebeck 947
60     * MIDI driver:
61     - dispatch bank select (MSB and LSB) messages
62    
63 schoenebeck 1049 * audio driver:
64     - the ALSA audio output driver parameters now reflect the correct
65     parameter value ranges for the respective selected sound card
66     (patch by Till Wimmer, a bit fixed and extended)
67    
68 persson 951 * Gigasampler format engine:
69     - if a filter is used and EG2 finishes before EG1, let the voice
70     die when EG2 has finished (this fixes a problem with clicks and
71     voice starvation for some gigs)
72 persson 1038 - playback is no longer disabled during instrument loading
73     - all notes playing on a channel that changes its instrument keep
74     playing with the old instrument until they get a note off
75     command
76 persson 1039 - EG fix: a release value of zero could cause noises or crash
77 schoenebeck 1041 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
78 persson 1046 - EG fine tuning: when attack is zero the EG starts at a level
79     above max sustain level, which means that there is a decay phase
80     even if sustain is 100%
81 persson 1147 - more EG fixes: the level could sometimes go below zero and cause
82     noises or crashes
83 schoenebeck 1149 - minor fix of EGDecay (patch by Toshi Nagata)
84 schoenebeck 1181 - fixed compiler error when --enable-override-filter-type was
85     supplied to the configure script (fixes #46)
86 persson 951
87 schoenebeck 1244 * LSCP server:
88     - fixed compile time error for old Bison versions
89     (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
90 schoenebeck 1245 - parser now supports extended ASCII character set
91     (up to ASCII code 255, i.e. includes now umlauts and accents)
92     - filename arguments in LSCP commands now allow to use escape
93     sequences, that is directly literal as one of: \', \", \\, \n, \r,
94     \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
95     code value like \xf2) (fixes bug #24)
96 schoenebeck 1244
97 iliev 959 * Bug fixes:
98     - fixed crash occurring on certain LSCP scripts (Bug 39)
99 persson 1038 - another thread safety fix for lscp "load engine" and "set
100     channel audio output device"
101 iliev 959
102 schoenebeck 1221 * test cases:
103     - updated and fixed (haven't been touched in a while)
104    
105 schoenebeck 937 Version 0.4.0 (24 November 2006)
106 persson 696
107 schoenebeck 697 * packaging changes:
108 capela 868 - changed deprecated copyright attribute to license; added ldconfig
109     to post-(un)install steps; added devel package for liblinuxsampler;
110     to linuxsampler.spec (RPM)
111 schoenebeck 697 - install necessary development header files for allowing 3rd party
112     applications to link against liblinuxsampler
113     - liblinuxsampler's API documentation can be generated with 'make docs'
114     (Doxygen required)
115 schoenebeck 715 - added benchmark to automatically detect the best triangle LFO
116     implementation (currently either an integer math solution or a
117     di-harmonic approximation), automatic detection can be overriden
118     with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
119     configure script argument though (mandatory for cross-compilation)
120 schoenebeck 829 - do not automatically pick optimized gcc flags if the user already
121     provided some on his own (as CXXFLAGS)
122 schoenebeck 849 - added compile time option to disable processing of All-Notes-Off MIDI
123     messages
124 schoenebeck 852 - added compile time options to allow disabling the various audio and
125     MIDI drivers
126 schoenebeck 909 - fixed automatic GCC CPU switch detection on PPC
127     (patch by Ebrahim Mayat)
128 schoenebeck 697
129 persson 696 * Gigasampler format engine:
130 schoenebeck 738 - extensive synthesis optimization
131     (reimplementation of EGs and LFO(s), removed synthesis parameter
132     prerendering and the synthesis parameter matrix in general, splitting
133     each audio fragment into subfragments now where each subfragment uses
134 persson 830 constant pitch and filter coefficients. The volume coefficient is
135     linearly interpolated inside a subfragment, unless
136     --disable-interpolate-volume is set.)
137 persson 696 - fine tuning of the EG modulation parameters
138 persson 729 - improved filter cutoff calculation by adding support for the
139     following gig parameters: Cutoff freq (used when no cutoff
140     controller is defined), Control invert, Minimum cutoff, Velocity
141 persson 791 curve and Velocity range. The keyboard tracking now scales
142     cutoff frequency instead of resonance.
143 persson 877 - added support for gig parameter Resonance.
144 schoenebeck 775 - fixed bug in sysex handling (patch by Juan Linietsky)
145 schoenebeck 781 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
146     which can be overridden with --enable-global-attenuation
147 persson 783 - EG fixes: made the length of "attack hold" stage more
148     accurate. Release stage can now start before attack stage
149 persson 797 ends. Cancel release didn't work when sustain was zero. Attack
150     time now has a minimal value to prevent clicks.
151 persson 799 - fixed pitch changes larger than one octave
152 schoenebeck 829 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
153     - implemented portamento mode and solo mode (a.k.a 'mono mode'):
154     all modes can be altered via standard GM messages, that is CC5 for
155     altering portamento time, CC65 for enabling / disabling portamento
156     mode, CC126 for enabling solo mode and CC127 for disabling solo mode
157 persson 832 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
158     parameter) and crossfade
159 persson 831 - added support for the "attenuation controller threshold" gig
160     parameter
161 persson 832 - added smoothing of volume changes caused by control change
162     messages
163 persson 865 - sample loop parameters are now taken from the DimensionRegion
164     instead of the wave chunk
165     - fixed keyswitching for v3 gigs with a number of keyswitch splits
166     not equal to a power of two
167 persson 877 - reimplementation of the filter algorithm. The new filter is more
168     accurate and supports all gig filter types, including bandreject
169     and lowpass turbo.
170 persson 903 - real support for 24 bit samples - samples are not truncated to
171     16 bits anymore
172     - support for aftertouch (channel pressure, not polyphonic
173     aftertouch)
174 persson 922 - LFO1 behaviour fixed (dampening from max volume instead of
175     amplifying from 0)
176 persson 696
177 schoenebeck 711 * LSCP server:
178     - fixed application exit on broken pipe error (fixes bug #20)
179 iliev 793 - fixed the notification messages delay due to lack of
180     network activity (fixes bug #26)
181 schoenebeck 826 - fixed parser bug which occured on space(s) within device parameters
182     (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
183 schoenebeck 711
184 schoenebeck 838 * audio driver:
185     - added aRts audio output driver (by no means RT safe)
186    
187 schoenebeck 775 * MIDI driver:
188     - fixed legacy sysex code which caused dispatching of MIDI SysEx
189     messages several times instead of once
190 schoenebeck 906 - API extension for MIDI drivers which already supply exact time stamps
191     for events (i.e. for offline rendering based MIDI drivers)
192 persson 922 - added checks for bad MIDI data
193 schoenebeck 775
194 schoenebeck 900 * linuxsampler application:
195     - show available sampler engine types on startup
196    
197 schoenebeck 705 * general changes:
198     - support for muting sampler channels and solo mode of the same, two new
199     LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
200     fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
201     introduced for this, the behavior is the same like on a mixer console
202 iliev 716 (patch by Grigor Iliev, a bit adjusted). Also added configure option
203     --enable-process-muted-channels which can be used to enable the
204     processing of muted channels.
205 iliev 777 - support for sostenuto pedal
206 iliev 779 - support for monitoring the total number of active voices
207 iliev 778 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
208     SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
209 persson 835 - fixed some memory management errors
210 persson 841 - fixed some concurrency problems that could lead to crashes when
211     LSCP commands were executed
212 schoenebeck 925 - fixed crash when instrument loading failed previously on the same
213     sampler channel (fixes bug #36)
214 schoenebeck 705
215 schoenebeck 692 Version 0.3.3 (15 July 2005)
216 schoenebeck 686
217     * packaging changes:
218     - fixed compilation with gcc 4.0
219    
220 schoenebeck 687 * Gigasampler format engine:
221     - LFO preprocessing was performed even though the respective LFO was
222     disabled by the instrument patch (minor efficiency fix)
223 schoenebeck 688 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
224     for volume ramp downs in the same fragment (needed for current voice
225     stealing implementation) then simply inform the user with a warning
226     about possible click sounds and reduce the volume ramp down
227     appropriately instead of cancelling the audio device connection
228 schoenebeck 687
229 schoenebeck 677 Version 0.3.2 (24 June 2005)
230 schoenebeck 609
231     * packaging changes:
232     - updated autotools build files to compile on OS X
233     (conditional compilation of CoreMIDI and MidiShare drivers)
234 schoenebeck 617 - hand-crafted assembly optimization code can be disabled with
235     './configure --disable-asm' (definitely not recommended)
236 schoenebeck 654 - fixed 'make dist' rule to include all necessary files
237     - require automake (>= 1.5) for 'make -f Makefile.cvs'
238     (due to 'dist-bzip2' automake option)
239 schoenebeck 649
240     * Gigasampler format engine:
241     - support for the gig parameters for "release velocity response" curves
242     - fine tuning of the EGADSR envelope
243     - volume of release triggered samples now depends on note-on velocity,
244     note length and gig parameter "release trigger decay" instead of
245     note-off velocity.
246 schoenebeck 663 - revised voice stealing
247     (fixes crash and endless loop caused by voice stealing)
248 schoenebeck 659 - don't reset scale tuning on instrument or audio output device change
249 schoenebeck 668 - handle key group conflicts right at the beginning of each fragment
250     instead of when the respective voice is actually launched
251     (fixes undefined behavior if stolen voices belonged to a key group -
252     this case was followed by a "killed voice survived" error message)
253 schoenebeck 669 - fixed minor issue with null/silence samples
254     (those stole voices even though they don't need a voice at all which
255     resulted in "voice stealing didn't work out" messages)
256 schoenebeck 670 - don't reset volume, pan, pitch and MIDI controller values on
257     instrument or audio output device change
258 schoenebeck 654
259 schoenebeck 620 * LSCP server:
260 schoenebeck 654 - fixed some crashes (patch by Grigor Iliev, fixes #19)
261 schoenebeck 660 - fixed LSCP event "CHANNEL_INFO" notification
262 schoenebeck 670 (e.g. did not notify on volume changes or MIDI program change events)
263 schoenebeck 609
264 schoenebeck 668 * linuxsampler application:
265     - added command line parameters --lscp-addr and --lscp-port to override
266     default IP address and port of LSCP server
267    
268 schoenebeck 579 Version 0.3.1 (24 May 2005)
269    
270     * initial release

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